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Edit this profileAt a glance
- 1305 W 18Th St, Sioux Falls, SD 57105
About Dr. O'brien
Charles P. O'Brien, M.D. is a healthcare provider in Sioux Falls, SD specializing in internal medicine. This provider record is associated with NPI 1124023171.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (605) 328-2929
- Email not available
Practice Locations
1305 W 18TH ST
Sioux Falls, SD 57105
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 7 related providers in 1 group
Common questions
What does Charles P. O'Brien specialize in?
Charles P. O'Brien is an internist in Sioux Falls, SD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Charles P. O'Brien located?
Charles P. O'Brien is listed at 1305 W 18Th St, Sioux Falls, SD 57105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Charles P. O'Brien's phone number?
The number on file is (605) 328-2929. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Charles P. O'Brien?
Charles P. O'Brien's National Provider Identifier is 1124023171. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Charles P. O'Brien have?
Charles P. O'Brien has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Charles P. O'Brien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Charles P. O'Brien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.